Effect of Power and Frequency on Bubble-Size Distributions in Acoustic Cavitation
Effect of Power and Frequency on Bubble-Size Distributions in Acoustic Cavitation
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DOI：
10.1103/physrevlett.102.084302
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发表时间：
2009-02-27
影响因子：
8.6
通讯作者：
Ashokkumar, Muthupandian
中科院分区：
文献类型：
--
作者：
Brotchie, Adam;Grieser, Franz;Ashokkumar, Muthupandian
声学气泡的大小分布已经确定使用脉冲超声方法在不同的超声功率和频率。平均气泡尺寸随声功率的增加而增大，随超声频率的增加而减小。我们还认识到，发出声致发光的气泡的平均尺寸大于产生声化学发光的气泡，这表明这两个过程发生在系统中不同种群的空化气泡中。
Acoustic bubble-size distributions have been determined using a pulsed ultrasound method at different ultrasound powers and frequencies. It was observed that the mean bubble size increased with increasing acoustic power and decreased with increasing ultrasound frequency. It was also recognized that the mean size of bubbles emitting sonoluminescence was greater than those producing sonochemiluminescence indicating that the two processes take place in different populations of cavitation bubbles in the system.